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Error creating attribute.
Payload: {key: "messageDate", required: false, default: null, array: false, project: "xxxxxxxxxxxxxx"} Response: {"message":"Server Error","code":500,"type":"general_unknown","version":"1.6.1"}
TL;DR
Title: Error creating attribute with a server error message.
Developers are experiencing a server error when trying to create an attribute with the key "messageDate" in the project. 